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| LTC3565_1 Datasheet, PDF (6/22 Pages) Linear Technology – 1.25A, 4MHz, Synchronous Step-Down DC/DC Converter | |||
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LTC3565
Typical Performance Characteristics TJ = 25°C, VIN = 3.6V, fO = 1MHz, unless
otherwise noted.
Switch Leakage vs Temperature
600
500
Burst Mode Operation
SW
2V/DIV
400
VOUT
50mV/DIV
300
AC COUPLED
200
100
0
â50
MAIN SWITCH
SYNCHRONOUS SWITCH
â25 0 25 50 75 100 125
TEMPERATURE (°C)
3565 G16
IL
200mA/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 50mA
4µs/DIV
Pulse Skipping Mode
SW
2V/DIV
VOUT
50mV/DIV
AC COUPLED
IL
200mA/DIV
3565 G17
VIN = 3.6V
VOUT = 1.8V
ILOAD = 5mA
4µs/DIV
Forced Continuous Mode
Start-Up from Shutdown
Start-Up from Shutdown
3565 G18
SW
2V/DIV
VOUT
50mV/DIV
AC COUPLED
IL
200mA/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 80mA
2µs/DIV
RUN
2V/DIV
3565 G19
VOUT
1V/DIV
IL
500mA/DIV
400µs/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 0A
Burst Mode OPERATION
RUN
2V/DIV
3565 G20
VOUT
1V/DIV
IL
1A/DIV
400µs/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 1.25A
Burst Mode OPERATION
3565 G21
3565fa
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